OWNERS MANUAL FOR
DH<2
DOWNHILL
WHITE BROTHERS CYCLING
A DIVISION OF EKO SPORT, INC.
580 NORTH WESTGATE DR.
GRAND JUNCTION, CO 81505
WWW.WHITEBROTHERSCYCLING.COM
Owners Name: ___________________________________________________________________________
Address: _________________________________________________________________________________
_________________________________________________________________________________
Phone: ___________________________________________________________________________________
Purchase Date: ___________________________________________________________________________
Purchase Location: _______________________________________________________________________
Serial # __________________________________________________________________________________
Located on the backside of the right axle clamp)
SAFETY
1.) NEVER REMOVE STEER TUBE FROM CROWN. THIS
IS A PRESSED IN PART, REMOVING IT WILL RENDER
BOTH CROWN AND STEERER INOPERABLE*. MAKE
SURE YOUR FORK CAPS AND ALL FORK HARDWARE
(brake studs, pinch bolts, etc.) ARE TIGHT.
2.) DO NOT PERFORM ANY MODIFICATIONS OR
ADJUSTMENTS THAT ARE NOT OUTLINED IN THIS
MANUAL. SEE THE TUNING SECTION OF THE
MANUAL FOR MORE DETAILS.
3.) INSPECT YOUR FORK BEFORE EVERY RIDE.
INSPECT THE CROWN, TUBES AND AXLE SEAT
AREAS FOR ANY SIGNS OF FATIGUE, BENDING,
CRACKING OR OTHER DAMAGE. IF YOU NOTICE
ANY TYPE OF DAMAGE, DO NOT RIDE ON YOUR
FORK.. RETURN IT TO YOUR DEALER FOR A
COMPLETE INSPECTION AND NECESSARY REPAIR
OR WARRANTY STEPS. PLEASE REFER TO THE
WARRANTY SECTION OF THIS MANUAL.
4.) PERFORM ALL RECOMMENDED MAINTENANCE
ACCORDING TO THE MAINTENANCE SECTION OF
THIS MANUAL. FAILURE TO PERFORM
MAINTENANCE COULD DRASTICALLY REDUCE
YOUR FORK’S LIFE AND PERFORMANCE.
5.) WHITE BROTHERS RECOMMENDS THAT YOU
WEAR PROPER SAFETY EQUIPMENT EVERY TIME
YOU RIDE, INCLUDING AN APPROVED BICYCLE
HELMET. NEVER RIDE AT NIGHT WITHOUT LIGHTS!
* IF SERVICE BECOMES NECESSARY OR REMOVAL
OCCURS, PLEASE CALL WHITE BROTHERS
CUSTOMER SERVICE FOR PRODUCT EVALUATION
AND DIAGNOSIS.
APPLICATIONS
Thanks for purchasing your new White Brothers Fork. You
are in for the best ride of your life. Our forks are designed to
give you the level of performance you need to ride at your
absolute peak.
The White Brothers DH-2 fork features lightweight, dual
rate coil springs and an externally adjustable hydraulic
damper. This technology is borrowed from motorcycling and
offers the best possible suspension action. Steering accuracy
is improved over conventional MTB forks by utilizing dual
billet aluminum steering crowns, oversized 31.75mm fork
tubes, inverted stanchion/slider design and large 20mm axle.
Fork travel has been set at 6.10” (155mm) to offer the best
performance for downhill racing terrain. An optional 7.09”
(180mm) kit is available if longer travel is desired. A
combination coil spring and high-cushion bottom bumper is
used to minimize hard bottoming.
Every possible effort has been made to make the White
Brothers Fork very light in weight and perform at a level
superior to other forks on the market. To ensure peak
performance, proper installation and periodic maintenance is
required. Please read this manual in its entirety to familiarize
yourself with the fork to insure your satisfaction with this
product.
White Brothers Forks are designed for offroad use only.
They are not equipped with proper reflectors for road use. If
you are going to use your fork on the road, have your dealer
or mechanic install reflectors that meet the Consumer
Product Safety Commission’s (C.P.S.C.) requirements for
bicycle standards. If you have any questions concerning
C.P.S.C. Standards, please talk to your dealer.
When using your fork on public land and trails, please
respect the rights of other users and stay on established paths
and trails. By mountain biking responsibly, you help to
ensure the future of our sport.
Copyright 2001, Eko Sport, Inc. All Rights Reserved.
FORK INSTALLATION
White Brothers DH-2 Fork features a 1 1/8” threadless steerer tube. If you have a threaded type fork on your bicycle, consult your
dealer for the appropriate upgrade parts necessary to convert to a 1 1/8” threadless steerer tube.
NOTE: Some frames are not adequately reinforced to handle loads applied by stiffer dual crown forks. Check with your frame
manufacturer to verify dual crown fork compatibility.
1.) Remove old fork from the bicycle. See your bicycle’s owner’s
manual. Measure the diameter and length of your old fork’s steerer
tube to insure that the White Brothers Fork steerer tube is the correct
diameter and has sufficient length for the installation. NOTE: Add
.65” (16mm) to length if you are upgrading from single crown fork
to dual crown model.
2.) Remove the crown race from your old fork. NOTE: Replace the
bearings if there are any signs of wear or corrosion
3.) Press the crown race onto the steerer of your White Brothers Fork
(figure 1).
4.) Preassemble headset by sliding fork steerer tube through headset
bearings. Then install top headset, top crown, stem spacer
(optional), and steering stem onto fork steerer tube. Refer to headset
owner’s manual if you have any questions about this preassembly
(figure 2).
5.) Read step 11 and check tire clearance prior to cutting steerer tube.
Mark steerer tube at top of steerer stem. Steerer must then be cut
3mm (1/8”) below this mark. Consult a dealer or mechanic if you do
not have the proper tools for cutting the steerer tube. NOTE: The
DH-2 fork will not work on frames with head tubes longer than 5
1/2”. NOTE (IF INSTALLING WB MX BAR MOUNTS):
Preassemble headset by: Sliding fork steerer tube through headset
bearings. Then install top headset, top crown and 5 to 10mm stem
spacer. Mark steerer tube at top of stem spacer. Steerer must then be
cut 3mm (1/8”) below this mark. Consult a dealer or mechanic if
you do not have the proper tools for cutting the steerer tu be.
6.) The special star fangled nut must now be installed into the
steerer. We recommend dealer installation of this nut since a special
tool is required.
7.) Clean and grease all headset bearings and races to prepare them
for assembly.
8.) Now assemble headset as done in Step 4.
9.) Install the top steering crown. Install the steering stem (threadless
type is required) and handlebars. Set your bars to your desired
height.
10.) Install the threadless mounting cap. Tighten the top threadless
stem bolt until there is no play in the fork tube. The fork should
rotate freely in the head tube. Secure the pinch bolts on the steering
stem. Consult the installation instructions for your threadless
bearing set to insure correct installation and tension of the headset .
11.) TIRE CLEARANCE: The fork tubes can be adjusted up or
down in the fork crowns to adjust ride height and steering geometry.
NOTE: At full extension of the fork, a minimum of 6 1/2” (165mm)
clearance must exist between tire and the bottom of the crown
(w/fork equipped with 6” travel internals). If fork has been modified
to 7” travel with WB option kit, a minimum 7 1/2” (190mm)
clearance must exist between tire and the bottom of the steering
crown. NOTE: DH-2 Fork
has approximately 3/4” negative travel. Pull up to fully top out
fork to make this measurement. WARNING: Any less clearance
than this will allow the tire to contact the bottom of the crown when
the fork is fully compressed. This could stop the wheel from
revolving throwing the rider and causing possible injury or death.
Next check to make sure the top of the fork tubes fit all the way
through the top steering crown. If insufficient clearance exists, you
must switch to a smaller diameter front tire. Tighten upper and
lower crown pinch bolts to secure fork legs into positio n.
12.) Install your front brakes and adjust following the manufacturers
specifications. See additional instructions below. NOTE: Only disc
type brakes can be used with the White Brothers DH-2 Fork.
13.) RIM CENTERING: See your dealer or professional wheel
builder to have the rim of your choice laced to your downhill hub.
The wheel builder will need to lace rim so that it is directly centered
between the fork legs, If you are using a 110mm hub you will need to
supply your wheel builder with the 10mm axle spacer (supplied) to
achieve correct wheel alignment.
14.) WHEEL/BRAKE INSTALLATION: The White Brothers DH2 Fork is designed for a downhill type hub utilizing a 20mm axle.
Install front wheel with disc rotor next to left side of fork. Slide axle
all the way through. Make sure disc rotor doesn’t contact left fork
axle seat when axle is tightened fully. If it does, a custom spacer will
have to be fabricated to space hub/rotor away at least 3mm from left
fork axle seat. At this time the brake caliper should be mounted and
alignment checked with the disc rotor. Follow the disc brake
manufacturers installation instructions to insure correct brake rotor,
brake caliper alignment.
15.) FINAL WHEEL INSTALLATION: Lightly grease front axle
and install front wheel to fork. Tighten axle completely. Now tighten
both left and right fork axle seat pinch bolts. Follow the disc brake
manufacturers installation instructions and recommended torque for
mounting brake caliper to left fork leg.
16.) Route hydraulic brake cable up to the brake lever. Make sure
that cable is routed so that it cannot foul on tire, fork crowns, or
steering stops through full up and down fork travel and side to side
steering radius.
17.) Check to see that your brakes are adjusted and working.
18.) STEERING CLEARANCE: Due to the White Brothers DH-2
double crown design, the fork tubes or fork steering crowns will
contact the bicycle frame at full steering lock to the left and right. To
eliminate the chance of damage to the fork or frame, a cushion stop
must be fabricated to eliminate metal to metal contact. Fork bumpers,
elastomers or thick pieces of rubber will work fine. Secure in place to
the frame or fork with zip tie or glue.
FIGURE 1
steering stem
spacer
(optional)
bicycle head tube
headset bearings
lower race
FIGURE 2
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